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91

SPM2007 (11/07)

HIGH FREQUENCY PLANAR

TRANSFORMERS

PA08XXNL Series (up to 140W)

Single Winding

Tapped Winding

Dual Winding

Turns

1T

2T

3T

4T

1:1

1:2

1:3

2:2

1T & 1T

1T & 2T

DCR

(m

Ω

Ω)

0.44

1.3

3.5

7

1.3

3.5

7

7

1.3

3.5

4T

10

PA0806

PA0806

PA0811

PA0801

PA0806

PA0811

PA0801

PA0801

PA0806

PA0811

5T

12.5

PA0808

PA0808

PA0813

PA0803

PA0808

PA0813

PA0803

PA0803

PA0808

PA0813

6T

15

PA0810

PA0810

PA0815

PA0805

PA0810

PA0815

PA0805

PA0805

PA0810

PA0815

8T

40

PA0806

PA0806

PA0811

PA0801

PA0806

PA0811

PA0801

PA0801

PA0806

PA0811

9T

45

PA0807

PA0807

PA0812

PA0802

PA0807

PA0812

PA0802

PA0802

PA0807

PA0812

10T

50

PA0808

PA0808

PA0813

PA0803

PA0808

PA0813

PA0803

PA0803

PA0808

PA0813

11T

55

PA0809

PA0809

PA0814

PA0804

PA0809

PA0814

PA0804

PA0804

PA0809

PA0814

12T

60

PA0810

PA0810

PA0815

PA0805

PA0810

PA0815

PA0805

PA0805

PA0810

PA0815

4T/4T

20/20

PA0806

PA0806

PA0811

PA0801

PA0806

PA0811

PA0801

PA0801

PA0806

PA0811

4T/5T

20/25

PA0807

PA0807

PA0812

PA0802

PA0807

PA0812

PA0802

PA0802

PA0807

PA0812

5T/5T

25/25

PA0808

PA0808

PA0813

PA0803

PA0808

PA0813

PA0803

PA0803

PA0808

PA0813

5T/6T

25/30

PA0809

PA0809

PA0814

PA0804

PA0809

PA0814

PA0804

PA0804

PA0809

PA0814

6T/6T

30/30

PA0810

PA0810

PA0815

PA0805

PA0810

PA0815

PA0805

PA0805

PA0810

PA0815

PA08XX Transformer Winding Configuration Matrix

The following is a matrix of the winding configurations that are

possible with the Pulse PA08XX Planar Transformer Platform.

The package is typically capable of handling between 80-140W of

power depending on the application, ambient conditions and

available cooling. Once a configuration is selected, the formulae

and charts can be used to determine the approximate power

dissipation and temperature rise of the component in a given

application.

NOTES:

1. The primary inductance for any configuration can be calculated as:

2. The above base part numbers (PA08XXNL) are available from stock.

3. It is possible to add a small gap to the transformer. Gapped transformers are non-standard and can be made available upon

request, but are not typically available from stock. To request a gapped version of the transformer, add a suffix 'G' to the base

number (ie: PA0801NLG or PA0801.004NLG etc.). The nominal inductance with the a gap can be calculated as:

4. It is possible to add a primary side aux. winding to any of the above configurations as shown in the schematics. Transformers with

primary side aux. windings are non-standard and can be made available upon request, but are not typically available from stock.

The primary aux. winding can be between 2 and 16 turns. To add a primary aux. winding to a given base, use the extension .0XX.

For example, to add a 4T aux. winding to the base part number PA0801NL, use the part number PA0801.004NL. To add a 16T

aux. winding, use the part number PA0801.016NL.

5. Optional Tape & Reel packaging can be ordered by adding a "T" suffix to the complete part number (i.e. PA0801 becomes

PA0801T for no AUX - PA0801.009NL becomes PA0801T.009NLT for 9T AUX). Pulse complies to industry standard tape and reel

specification EIA481.

SECONDARY WINDINGS